Alenia may refer to:

Companies

• Alenia Aermacchi, an Italian aeronautics company, founded in 2012
• Alenia Aeronautica, a former Italian aeronautics company, founded in 1990 and merged into Alenia Aermacchi
• Alenia Marconi Systems, a former Anglo-Italian defence electronics company
• Alenia Spazio, an Italian aerospace company (now Thales Alenia Space)

Other uses

• Alenia (butterfly), a genus of skippers in the family Hesperiidae

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